Big-Block "casting #" location on the block???

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Nov 7, 2002 | 10:53 PM

NASCAR314

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Drifting

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From: St. Peters MO

Big-Block "casting #" location on the block???

Where would you find the casting number on a big block Chevy motor?
71-72 454c.i in question.

Thanks,
Tom

Nov 7, 2002 | 10:58 PM

73 LS-4

Melting Slicks

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From: Moro IL

Re: Big-Block "casting #" location on the block??? (NASCAR314)

Hey Tom,

It will be on the drivers side of the block just behind the cylinder head, I'm guessing this is for your new toy?

:cheers:
Pat Kunz

Nov 7, 2002 | 10:59 PM

LAvetteman

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From: South Central Louisiana

St. Jude Contributor

Re: Big-Block "casting #" location on the block??? (NASCAR314)

Rear, by bell housing, drive side, 7 digits. Post what you find, we have references.

Nov 7, 2002 | 11:52 PM

NASCAR314

Thread Starter

Drifting

Joined: Nov 1999

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From: St. Peters MO

Re: Big-Block "casting #" location on the block??? (71,454,4spd)

Yes Pat, it's the motor in the "New Toy", I'm still un-ravelling the mystery!

Casting # 3999289 (or maybe 8999289)

Thanks for the location, easy to find when I know where to look.

The cast iron exhaust manifolds match up to a 1972 model Chevrolet.
(#3989310 on right and #3989343 on left)

This motor is not in a Vette, just wondering what it came out of originally.

Thanks,

Nov 8, 2002 | 12:24 AM

73 LS-4

Melting Slicks

Joined: Jun 2001

Posts: 2,340

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From: Moro IL

Re: Big-Block "casting #" location on the block??? (NASCAR314)

What a coincidence, you have the same casting I do :lol: 3999289. So it may possibly have been out of a 73 vette, when you get a chance pull a valve cover and see if it has 049 heads, if it does then there is a better chance it did come out of a 73 vette. What vin number is stamped on the block in front of the passenger side head?

:cheers:
Pat Kunz

Nov 8, 2002 | 12:41 AM

LAvetteman

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From: South Central Louisiana

St. Jude Contributor

Re: Big-Block "casting #" location on the block??? (NASCAR314)

Didn't see it, here is where I look.
http://www.nastyz28.com/sbchevy/sblock.html#casting

Nov 8, 2002 | 07:12 PM

NASCAR314

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Drifting

Joined: Nov 1999

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From: St. Peters MO

Re: Big-Block "casting #" location on the block??? (71,454,4spd)

Quote:

http://www.nastyz28.com/sbchevy/sblock.html#casting

That link is for "small blocks"
Need the "Big block" info.

Pat, I'll get back to ya with the V.I.N.# and head castings when I get time to check.

Thanks,
Tom